Lens



FIG. 1 is a top plan view of a lens showing my new design, the bottom view being a mirror image thereof.

FIG. 2 is left side view of the lens, the right side view being a mirror image thereof.

FIG. 3 is a front view of the lens, the back view being a mirror image thereof; and,

FIG. 4 is a perspective elevational view of the lens.

Wherein the broken line showing of a mounting flange is for illustrative purposes only and forms no part of my design. 

The ornamental design for a lens, as shown and described. 